Tyson was a boy from the Human World living with his two older siblings (a brother and a sister), their father and their mother. One day the family went out on a road trip all happy and excited since they had never had one before. Unfortunately this road trip would be their first and final one as they met their deaths in a horrible car accident that ended with all of their lives.
Despite this, Tyson's soul continued to roam the world of the living, and he managed to reunite with his brother at some point, but they never were able to find their parents' or sister's souls. Hollows often came out to devour them, but they managed to escape from them numerous times, until one day, his brother was captured and devoured by the hollows.
The Hollows then tried to devour Tyson, being partially successful as they devoured part of his soul as well, but luckily a black clothed warrior appeared and defeated the Hollows with ease. Despite being saved, Tyson started changing into a Hollow himself from having half of his soul devoured.
The clothed warrior, being a Shinigami representative had no choice but to release Tyson's soul and send it to Rukongai in Soul Society. When Tyson arrived to Soul Society, he still had the piece that formed of his hollow mask in his face, which he took off and took a look at.
After that, Tyson himself became part of the Gotei 13, starting as a seated officer of the 2nd squad. Later on, he got promoted to Lieutenant, until the time came when he himself became a Captain, and took command of the vacant 6th Squad for a long while, eventually being promoted yet again to the last possible promotion of a Shinigami known as the Zero Division, or Royal Guard.
Not much activity went on in the Gotei 13, and many of the Shinigami became bored and restless, looking for other places to explore and hopefully have a good time in. The Spirit King noticed this, and ordered Tyson to go after them and put order wherever they were hanging around.
This eventually led Tyson to a place called BACON Society, where all his fellow comrades loved to hang out, forcing Tyson to become the leader of the club in exchange of unlimited supplies of BACON. Only a fool would reject this offer, and this is where Tyson's profile info ends :P